Escalator stopping distance measuring device

Abstract

The utility model discloses an escalator stopping distance measuring device, which relates to the technical field of escalator measuring equipment and comprises a host, a speed monitoring device and a mechanical triggering device, and the host is electrically connected with the speed monitoring device and the mechanical triggering device respectively. The main machine is located outside a stair at the uppermost end of the escalator, the main machine is used for calculating the number of needed braking loads, and a camera module is arranged on the main machine and used for recording audios and videos when the braking distance is measured; the speed monitoring device is in contact with a stair at the uppermost end of the escalator, and the speed monitoring device is used for measuring the stair speed and stair movement of the escalator; the mechanical trigger device is located on the outer side of an emergency stop button of the escalator and used for controlling the emergency stop button of the escalator. According to the utility model, in the whole measurement process, full-process automatic measurement can be realized, and possible interference of human factors on measurement results is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of escalator measuring equipment, in particular to an escalator stopping distance measuring device. Background Art

[0002] According to TSG T7005-2012 "Rules for Supervisory Inspection and Periodic Inspection of Elevators - Escalators and Moving Walkways", escalators and moving walkways should be tested for their stopping distance during supervisory inspection. The specific test process is as follows:

[0003] 1. Measure the nominal width of the escalator;

[0004] 2. Determine the braking load of the escalator based on the nominal width;

[0005] 3. Determine the number of visible steps;

[0006] 4. Distribute the calculated braking load on the upper 2 / 3 of the steps of the escalator;

[0007] 5. Use the marking method to measure the downward stopping distance. Draw an arrow mark on the apron plate near the comb plate of the escalator drive end station, start the escalator, and when the escalator reaches the rated speed, use the front edge of the step pedal as a reference. When the front edge of the step pedal just passes the arrow mark, disconnect the driving power supply or activate the emergency stop switch, and measure the stopping distance from the front edge of the step pedal to the arrow mark.

[0008] Since the current stopping distance measurement of escalators and moving walkways generally relies on the marking method, this method is significantly limited by human factors, resulting in large errors in the measurement results. In addition, complex load calculations and speed observations are required during the test, which is not only time-consuming and labor-intensive, but also difficult to ensure the accuracy of the calculation results. With the implementation of the new inspection regulations, the test process also needs to be recorded by audio and video, which undoubtedly further increases the complexity and cost of the test. Utility Model Content

[0009] The utility model aims to provide an escalator stopping distance measuring device to solve the problems existing in the background technology.

[0010] The purpose of this utility model is achieved through the following technical solutions:

[0011] An escalator stopping distance measuring device comprises a host, a speed monitoring device, a mechanical trigger device and a remote operation module, wherein the host is electrically connected to the speed monitoring device, the mechanical trigger device and the remote operation module respectively; the host is located outside the uppermost step of the escalator, and is used to calculate the required braking load quantity, and a camera module is provided on the host, and the camera module is used to record audio and video during stopping distance measurement; the speed monitoring device is in contact with the uppermost step of the escalator, and is used to measure the step speed and step moving distance of the escalator; the mechanical trigger device is located outside the emergency stop button of the escalator, and is used to control the emergency stop button of the escalator.

[0012] Furthermore, the speed monitoring device includes a wheel encoder and a base, the base is located on the outside of the top step of the escalator, the wheel encoder includes a wheel disc, an encoder and a connecting plate, the wheel disc is in contact with the top step of the escalator, the wheel disc is rotatably connected to one end of the connecting plate, the encoder is located on the side of the connecting plate facing away from the wheel disc, and the other end of the connecting plate is rotatably connected to the base.

[0013] Furthermore, a tension spring is provided on the connecting plate.

[0014] Furthermore, the mechanical trigger device comprises a stretching electromagnet, and one end of a sliding rod of the stretching electromagnet corresponds to the position of an emergency stop button of the escalator.

[0015] Furthermore, the host includes a tripod and an operating table, the operating table is fixed on the tripod, and the camera module is located on the operating table.

[0016] Furthermore, the mechanical trigger device is wirelessly connected to the host.

[0017] The beneficial effects of the utility model are:

[0018] 1) During the entire measurement process, full automatic measurement can be achieved, effectively reducing the possible interference of human factors on the measurement results. The speed monitoring device can automatically monitor the speed in real time, and the mechanical trigger device can quickly stop the operation of the escalator.

[0019] 2) The test has good accuracy. The parameters of the escalator are obtained in advance, and then the parameters are input into the host computer, which calculates the amount of braking load required by the current escalator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a top view of an escalator stopping distance measuring device according to the utility model;

[0021] Figure 2 This is a working schematic diagram of the speed monitoring device in the utility model;

[0022] Figure 3 It is a three-dimensional diagram of the speed monitoring device in the utility model;

[0023] Figure 4 It is a side view of an escalator stopping distance measuring device of the utility model;

[0024] Figure 5 for Figure 4 The enlarged schematic diagram of point A in the middle;

[0025] In the figure, 1- escalator, 11- emergency stop button, 2- host, 21- tripod, 22- operation table, 23- camera module, 3- speed monitoring device, 31- wheel, 32- encoder, 33- connecting plate, 34- tension spring, 35- base, 4- mechanical trigger device. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0028] like Figure 1-Figure 5 As shown, an escalator stopping distance measuring device includes a host 2, a speed monitoring device 3, a mechanical trigger device 4 and a remote operation module 5, wherein the host 2 is electrically connected to the speed monitoring device 3, the mechanical trigger device 4 and the remote operation module 5 respectively; the host 2 is located outside the uppermost step of the escalator 1, and the host 2 is used to calculate the required braking load quantity, and a camera module 23 is provided on the host 2, and the camera module 23 is used for audio and video recording during the stopping distance measurement; the speed monitoring device 3 is in contact with the uppermost step of the escalator 1, and the speed monitoring device 3 is used to measure the step speed and step moving distance of the escalator 1; the mechanical trigger device 4 is located outside the emergency stop button 11 of the escalator 1, and the mechanical trigger device 4 is used to control the emergency stop button 11 of the escalator 1.

[0029] Through the above technical solution, the parameters of the escalator 1 are obtained in advance, and then the parameters are input into the host 2. The host 2 calculates the amount of braking load currently required by the escalator 1, and the braking load is placed on the steps of the escalator 1 according to the calculation of the host 2.

[0030] After the braking load is loaded, the escalator 1 is started. After completion, the camera module 23 is turned on to record the stopping distance measurement process in real time. The camera module 23 is turned on to record the stopping distance test measurement process in real time, and then the escalator is started. The operator can exit the escalator entrance. The speed monitoring device 3 is in direct contact with the steps to monitor the step speed in real time to accurately reflect the running speed of the escalator 1. When the speed reaches the rated value, the mechanical trigger device 4 receives the control trigger signal from the host 2, so that the mechanical trigger device 4 triggers the stop button of the escalator 1, causing the escalator 1 to start stopping until it stops completely.

[0031] At this time, the speed monitoring device 3 measures the stopping distance. When the host 2 sends a stopping signal, the mechanical trigger device 4 actuates the stop button of the escalator 1, and the speed monitoring device 3 starts to measure the stopping distance synchronously until the escalator stops completely. The measured distance is the stopping distance of the escalator, and it is judged whether the distance meets the requirements. The measurement result and the judgment result will be displayed on the host 2.

[0032] During the entire measurement process, the device can achieve full-scale automated measurement, effectively reducing the possible interference of human factors on the measurement results. At the same time, it can also significantly improve the one-time success rate of measurement and avoid the manpower and time costs caused by multiple handling and placement of loads.

[0033] Furthermore, the speed monitoring device 3 includes a wheel encoder 32 and a base 35, the base 35 is located on the outer side of the top step of the escalator 1, the wheel encoder 32 includes a wheel disc 31, an encoder 32 and a connecting plate 33, the wheel disc 31 is in contact with the top step of the escalator 1, the wheel disc 31 is rotatably connected to one end of the connecting plate 33, the encoder 32 is located on the side of the connecting plate 33 that is back to the wheel disc 31, and the other end of the connecting plate 33 is rotatably connected to the base 35.

[0034] Through the above technical solution, the wheel disc 31 is in contact with the step, thereby causing the wheel disc 31 to rotate. The rotation of the wheel disc 31 drives the encoder 32 to rotate. The encoder 32 outputs a fixed number of pulses after one rotation. The rotation speed can be obtained by measuring the number of pulses output by the encoder 32 within a fixed time, and then the speed of the step can be obtained, as well as the rolling distance and stopping distance of the wheel disc when the escalator starts to stop and stops completely.

[0035] Furthermore, a tension spring 34 is provided on the connecting plate 33 .

[0036] Through the above technical solution, the connecting plate 33 can drive the wheel disc 31 to always contact the step through the tension spring 34, thereby avoiding slipping and ensuring the accuracy of measurement.

[0037] Furthermore, the mechanical trigger device 4 comprises a stretching electromagnet, and one end of a sliding rod of the stretching electromagnet corresponds to the position of the emergency stop button 11 of the escalator 1 .

[0038] Through the above technical solution, the slide bar in the push-pull electromagnet is movable. When current passes through the internal solenoid of the push-pull electromagnet, the slide bar will be pushed outward and then abut against the emergency stop button 11 to stop the escalator 1; when the current stops, the effect of the external magnetic field disappears, and the slide bar will return to its original position under the action of the spring.

[0039] Furthermore, the host 2 includes a tripod 21 and an operating table 22 , the operating table 22 is fixed on the tripod 21 , and the camera module 23 is located on the operating table 22 .

[0040] Through the above technical solution, the operating table 22 and the camera module 23 are both supported by the tripod 21. By adjusting the position of the tripod 21 and the position of the camera module 23, the entire test area can be monitored and the entire test process can be recorded.

[0041] Furthermore, the host 2 is provided with a remote operation module, and the mechanical trigger device 4 is connected to the host 2 wirelessly.

[0042] Through the above technical solution, since the mechanical trigger device 4 is wirelessly connected to the host 2, and the host 2 is provided with a remote operation module, when an emergency occurs, the operator can remotely control the mechanical trigger device 4 to stop the operation of the escalator 1 to ensure the safety of personnel and equipment.

[0043] Furthermore, this device is also suitable for the periodic inspection and stopping distance measurement of moving walkways and escalators 1 that do not require load loading. It is only necessary to select the corresponding equipment type and inspection category, input the relevant equipment parameters, and perform the stopping distance measurement without load loading according to this scheme. The host 2 can be wirelessly connected to the speed monitoring device 3 and the mechanical trigger device 4, which makes the installation and layout process simple and also makes the storage of the equipment no longer cumbersome. At the same time, the weight of the load can be automatically calculated through the built-in system of the host 2, which greatly improves the work efficiency and ensures the accuracy of the calculation results.

[0044] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be protected by the claims attached to the utility model.

Claims

1. An escalator stopping distance measuring device, characterized in that: It comprises a host (2), a speed monitoring device (3), a mechanical trigger device (4) and a remote operation module (5), wherein the host (2) is electrically connected to the speed monitoring device (3), the mechanical trigger device (4) and the remote operation module (5) respectively; The host (2) is located outside the uppermost step of the escalator (1), and the host (2) is used to calculate the required braking load quantity. A camera module (23) is provided on the host (2), and the camera module (23) is used to record audio and video when measuring the braking distance; The speed monitoring device (3) is in contact with the uppermost step of the escalator (1), and the speed monitoring device (3) is used to measure the step speed and step moving distance of the escalator (1); The mechanical trigger device (4) is located outside the emergency stop button (11) of the escalator (1), and the mechanical trigger device (4) is used to control the emergency stop button (11) of the escalator (1).

2. The escalator stopping distance measuring device according to claim 1, characterized in that: The speed monitoring device (3) comprises a wheel encoder (32) and a base (35), wherein the base (35) is located outside the uppermost step of the escalator (1), and the wheel encoder (32) comprises a wheel disc (31), an encoder (32) and a connecting plate (33), wherein the wheel disc (31) contacts the uppermost step of the escalator (1), the wheel disc (31) is rotatably connected to one end of the connecting plate (33), the encoder (32) is located on a side of the connecting plate (33) facing away from the wheel disc (31), and the other end of the connecting plate (33) is rotatably connected to the base (35).

3. The escalator stopping distance measuring device according to claim 2, characterized in that: A tension spring (34) is provided on the connecting plate (33).

4. The escalator stopping distance measuring device according to claim 1, characterized in that: The mechanical trigger device (4) comprises a stretching electromagnet, one end of a sliding rod of the stretching electromagnet corresponds to the position of an emergency stop button (11) of the escalator (1).

5. The escalator stopping distance measuring device according to claim 1, characterized in that: The host (2) comprises a tripod (21) and an operating table (22); the operating table (22) is fixed on the tripod (21); and the camera module (23) is located on the operating table (22).

6. The escalator stopping distance measuring device according to claim 1, characterized in that: The mechanical trigger device (4) is wirelessly connected to the host (2).

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